D52737.diff
No OneTemporary
Actions

Size

766 B

Referenced Files

None

Subscribers

None

D52737.diff
View Options

	diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c
	--- a/sys/kern/vfs_bio.c
	+++ b/sys/kern/vfs_bio.c
	@@ -4953,22 +4953,20 @@
	vfs_bio_bzero_buf(struct buf *bp, int base, int size)
	{
	vm_page_t m;
	- int i, n;
	+ int i, n, pgoff;

	if (buf_mapped(bp)) {
	BUF_CHECK_MAPPED(bp);
	bzero(bp->b_data + base, size);
	} else {
	BUF_CHECK_UNMAPPED(bp);
	- n = PAGE_SIZE - (base & PAGE_MASK);
	for (i = base / PAGE_SIZE; size > 0 && i < bp->b_npages; ++i) {
	m = bp->b_pages[i];
	- if (n > size)
	- n = size;
	- pmap_zero_page_area(m, base & PAGE_MASK, n);
	+ pgoff = (bp->b_offset & PAGE_MASK) + (base & PAGE_MASK);
	+ n = MIN(PAGE_SIZE - pgoff, size);
	+ pmap_zero_page_area(m, pgoff, n);
	base += n;
	size -= n;
	- n = PAGE_SIZE;
	}
	}
	}